Kakegawa Group

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Kakegawa Group

Coherent formation
Pliocene - early Pleistocene

Sedimentary facies: Marine
Sedimentary facies: Forearc basin (Sagara-Kakegawa Basin) deposit
Depth of water (Upper): Sallow marine - Continental shelf
Depth of water (Lower): Upper bathyal (200 - 600 m) - Middle bathyal (600 - 1,000 m)
Lithofacies:

Thickness: 2,000 m or thicker
Upper limit: Unconformity (Furuya Mud Bed)
Lower limit: Conformity (Sagara Group)

Kakegawa Group (Kikukawa, Shizuoka pref.)
[ Upper ]
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Horinouchi Alternation
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[ Lower ]

Kakegawa Group (Kakegawa, Shizuoka pref.)
[ Upper ]
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Dainichi Sandstone
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[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Shizuoka pref.
Fossils: Sponges (Sagarites chitanii), Calcareous nannofossils, Foraminifera

Sugiyama and Shimokawa (1990) Geology of the Shimizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 8p.)
Sugiyama et al. (1988) Geology of the Omaezaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 153p. (in Japanese with English abstract 6p.)